PERCEPT: A New Online Change-Point Detection Method using Topological Data Analysis
PERCEPT: A New Online Change-Point Detection Method using Topological Data Analysis
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PERCEPT:一种利用拓扑数据分析的新型在线变点检测方法
DOI:
10.1080/00401706.2022.2124312
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发表时间:
2023
期刊:
影响因子:
2.5
通讯作者:
Xie, Yao
中科院分区:
文献类型:
--
作者:
Zheng, Xiaojun;Mak, Simon;Xie, Liyan;Xie, Yao
Topological data analysis (TDA) provides a set of data analysis tools for extracting embedded topological structures from complex high-dimensional datasets. In recent years, TDA has been a rapidly growing field which has found success in a wide range of applications, including signal processing, neuroscience and network analysis. In these applications, the online detection of changes is of crucial importance, but this can be highly challenging since such changes often occur in low-dimensional embeddings within high-dimensional data streams. We thus propose a new method, called PERsistence diagram-based ChangE-PoinT detection (PERCEPT), which leverages the learned topological structure from TDA to sequentially detect changes. PERCEPT follows two key steps: it first learns the embedded topology as a point cloud via persistence diagrams, then applies a nonparametric monitoring approach for detecting changes in the resulting point cloud distributions. This yields a nonparametric, topology-aware framework which can efficiently detect online geometric changes. We investigate the effectiveness of PERCEPT over existing methods in a suite of numerical experiments where the data streams have an embedded topological structure. We then demonstrate the usefulness of PERCEPT in two applications on solar flare monitoring and human gesture detection.
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DOI:
10.1080/01621459.2017.1409123
发表时间:
2016-11
影响因子:
3.7
作者:
Simon Mak;Chih-Li Sung;Xingjian Wang;Shiang-Ting Yeh;Yu-Hung Chang;V. R. Joseph;V. Yang;C. F. J. Wu
通讯作者:
Simon Mak;Chih-Li Sung;Xingjian Wang;Shiang-Ting Yeh;Yu-Hung Chang;V. R. Joseph;V. Yang;C. F. J. Wu
DOI:
10.21105/joss.00925
发表时间:
2018-09
期刊:
J. Open Source Softw.
影响因子:
--
作者:
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通讯作者:
Christopher J. Tralie;Nathaniel Saul;R. Bar-On
影响因子:
3
作者:
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通讯作者:
A. Tartakovsky;I. Nikiforov;M. Basseville
影响因子:
2.4
作者:
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影响因子:
3
作者:
Perea, Jose A.;Harer, John
通讯作者:
Harer, John